Factor Tree of 21
How to find the Factor Tree of 21
Given number is 21
The factor tree of 21 is as follows:
| 21 | |||||||||
| 3 | 7 | ||||||||
21 = 3 x 7
Factor Tree Calculations
Here are examples of Factor tree calculations.
Ways to Find Factors of 21
Here we are providing different methods to find the factors of the number 21. They are splitting numbers and prime factors.
Splitting Numbers
We can divide the number into either of its two factors. In other words, we are looking for the numbers that when multiplied together eqaul 21. Let’s start with 3 x 7 as it results in 21 on multiplying. We will now find the factors or ancestors of split factors, just like in any family tree.
Prime Factors
Let’s take a look at 21 now and we can write as 3 x 7 and place those factors on the tree. similarly to prime numbers obtained in the first step 3, 7 obtained here are also prime numbers and we will end up these branches.
FAQ on 21 Factor Tree
1. What is factor tree for 21 ?
Answer: Prime Factors of 21 are 3 x 7.
2. What are the Prime Factors of 21 ?
Answer: Prime Factors of 21 are 3 x 7.